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--- projects:picoatlas:picoatlasiii [2011/07/12 06:49] – created jcoxon
+++ projects:picoatlas:picoatlasiii [2011/12/04 23:31] (current) – [PicoAtlasIII] jcoxon
@@ Line 1: / Line 1: @@
 ====== PicoAtlasIII ======
-Picoatlas III is a continuation of the previous 2 flights, I have recently been working on the use of solar panels and low power modes withe arduino on a separate project and felt that this could be re-appalled to picoatlas. The aim will still be to use cheap foil balloons and attempt to get them to float for an extended period of time.
+Picoatlas III is a continuation of the previous 2 flights, I have recently been working on the use of solar panels and low power modes withe arduino on a separate project and felt that this could be re-applied to picoatlas. The aim will still be to use cheap foil balloons and attempt to get them to float for an extended period of time.
 ===== Current theory =====
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   - Low power mode - this occurs when the battV < 725 - the payload keeps the GPS turned off and only transmits the beacon string every 20 loops ( ~2.5 mins). The aim of this mode is to maintain the payload overnight as well as to allow it to rapidly charge when starting from an exhausted battery
   - Normal power mode - this occurs when the battV > 725 - the beacon string is transmitted every 5 loops (~40 seconds)
-    - GPS is only turned on when the battV > 745 (the difference in modes is that the GPS can pull the voltage down quite a bit when powered up). It is turned on every 75 loops (~10mins) and once it has got a lock is turned off. During this time it'll transmit full strings every 5 loops, when it has a lock it'll transmit the same string 5 times to make it easier for listeners to get the key string
+    - GPS is only turned on when the battV > 745 (the difference in modes is that the GPS can pull the voltage down quite a bit when powered up). It is turned on every 75 loops (~10mins) and once it has got a lock is turned off. During this time it'll transmit full strings every 5 loops, when it has a lock it'll transmit the same string 5 times to make it easier for listeners to get the key string. The GPS is then turned off.
-    - When the battV > 800 it'll turn the GPS on every 40 loops - this is to take advantage of the full battery and good solar cell power in an attempt to get as much data transmitted as possible
+  - When the battV > 800 it'll turn the GPS on every 40 loops - this is to take advantage of the full battery and good solar cell power in an attempt to get as much data transmitted as possible
+===== Jobs =====
+  * Construct antenna
+  * Construct payload
+  * Test with smaller solar panel
+<del>  * Get balloons - //ordered//</del>